ScienceDaily: Top Environment News

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• Wave of blue fluorescence reveals pathway of death in worms
• Purple bacteria on Earth could survive alien light
• Harvesting electricity from the greenhouse gas carbon dioxide
• Rare bushcricket's chirp as loud as a power saw
• Scientific who's who of Bolivian mammals
• Why are sea stars dying from New Jersey to Maine? Divers asked to report large groupings of starfish
• Oldest European fort in the inland U.S. discovered in Appalachians
• Controlling genes with light: New technique can rapidly turn genes on and off, helping scientists better understand their function
• Secrets of mussels' clinginess revealed
• Tropical ecosystems regulate variations in Earth's carbon dioxide levels
• Is a common food fungus worsening the AIDS epidemic?
• Environmental toxins enter the brain tissue of polar bears
• Devastating long-distance impact of earthquakes

Wave of blue fluorescence reveals pathway of death in worms Posted: 23 Jul 2013 03:12 PM PDT The final biological events in the life of a worm are described in a new article. The paper reveals how death spreads like a wave from cell to cell until the whole organism is deceased.

Purple bacteria on Earth could survive alien light Posted: 23 Jul 2013 10:45 AM PDT Purple bacteria contain pigments that allow them to use sunlight as their source of energy, hence their color. Physicists recently found that these organisms can also survive in the presence of extreme alien light. The findings show that the way in which light is received by the bacteria can dictate the difference between life and death.

Harvesting electricity from the greenhouse gas carbon dioxide Posted: 23 Jul 2013 10:44 AM PDT A new method for producing electricity from carbon dioxide could be the start of a classic trash-to-treasure story for the troublesome greenhouse gas, scientists are reporting. The method uses CO2 from electric power plant and other smokestacks as the raw material for making electricity.

Rare bushcricket's chirp as loud as a power saw Posted: 23 Jul 2013 10:43 AM PDT A recently rediscovered species of bushcricket uses elastic energy and wing movement to reach high ultrasonic frequencies involving sound levels of about 110dB – comparable to that of a power saw.

Scientific who's who of Bolivian mammals Posted: 23 Jul 2013 10:42 AM PDT Biologists have published a massive database of mammals occurring in Bolivia, shedding light on the poorly known yet vast wildlife diversity of this South American country.

Why are sea stars dying from New Jersey to Maine? Divers asked to report large groupings of starfish Posted: 23 Jul 2013 10:42 AM PDT Marine biologists are working to identify the cause of a disease that is killing sea stars (starfish) from New Jersey to Maine.

Oldest European fort in the inland U.S. discovered in Appalachians Posted: 23 Jul 2013 08:37 AM PDT The remains of the earliest European fort in the interior of what is now the United States have been discovered by a team of archaeologists, providing new insight into the start of the U.S. colonial era and the all-too-human reasons spoiling Spanish dreams of gold and glory.

Controlling genes with light: New technique can rapidly turn genes on and off, helping scientists better understand their function Posted: 23 Jul 2013 08:37 AM PDT New technology can rapidly start or halt the expression of any gene of interest simply by shining light on the cells.

Secrets of mussels' clinginess revealed Posted: 23 Jul 2013 08:36 AM PDT Understanding the strength of the shellfish's underwater attachments could enable better glues and biomedical interfaces.

Tropical ecosystems regulate variations in Earth's carbon dioxide levels Posted: 23 Jul 2013 07:35 AM PDT Rising temperatures, influenced by natural events such as El Niño, have a corresponding increase in the release of carbon dioxide from tropical forest ecosystems, according to a new study.

Is a common food fungus worsening the AIDS epidemic? Posted: 23 Jul 2013 06:52 AM PDT A type of fungus coating much of the stored corn, wheat, rice and nuts in developing countries may be quietly worsening the AIDS epidemic, according to a new article.

Environmental toxins enter the brain tissue of polar bears Posted: 23 Jul 2013 05:13 AM PDT Scientists from Denmark and Canada are worried by their new findings showing that several bioaccumulative perfluoroalkyl substancesare crossing the blood brain barrier of polar bears from Scoresby Sound, East Greenland. Meanwhile, the same group of scientists is beginning to see a decrease in concentrations of this group of contaminants in polar bears from the same region.

Devastating long-distance impact of earthquakes Posted: 23 Jul 2013 04:39 AM PDT In 2006 the island of Java, Indonesia was struck by a devastating earthquake followed by the onset of a mud eruption to the east, flooding villages over several square kilometers and that continues to erupt today. Until now, researchers believed the earthquake was too far from the mud volcano to trigger the eruption. Geophysicists have now use computer-based simulations to show that such triggering is possible over long distances.

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